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Vehicle charger and its control pilot signal detection method

A signal detection and charger technology, applied in electric vehicle charging technology, charging stations, current collectors, etc., can solve the problems of CP signal duty cycle conditional noise malfunction and so on

Active Publication Date: 2020-08-21
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, there is a high possibility of malfunctioning due to a change in the duty ratio condition of the CP signal, a change in the input voltage condition, or the inflow of noise

Method used

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  • Vehicle charger and its control pilot signal detection method
  • Vehicle charger and its control pilot signal detection method
  • Vehicle charger and its control pilot signal detection method

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Embodiment Construction

[0034] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present disclosure. Further, the same reference numerals refer to the same elements throughout the specification.

[0035] Throughout this specification, unless expressly stated to the contrary, the word "comprise", and variations such as "comprising" and "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. Also, the terms 'unit', 'device' and 'module' used in this specification represent a unit for processing at least one function or operation, which may be implemented by hardware, software, or a combination of hardware and software. In addition, the singular forms "a", "an" and "the" used herein are also intended to ...

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Abstract

A control pilot (CP) signal detection method for a vehicle charger, comprising the steps of: when an input of a CP signal is detected when an ignition switch of a vehicle is turned off, performing counting the CP signal; when the set period passes, determining whether the count of the high-level CP signal among the CP signals is within the reference range; and determining whether the count based on the high-level CP signal is within the reference range As a result, status information of the CP signal is output.

Description

technical field [0001] The present disclosure generally relates to a vehicle charger and a control pilot (CP: control pilot) detection method thereof, and more particularly relates to a method for detecting power supplied by an electric vehicle (EV: electric vehicle) when the ignition switch is turned off. A vehicle charger for a CP signal generated by an electric vehicle (EVSE: electric vehicle), and a method for detecting the CP signal of the vehicle charger. Background technique [0002] When the connector of the EVSE is connected to perform a charging process while the ignition switch of the vehicle is turned off, the control power of the charger installed in the vehicle needs to be turned on. However, it may be difficult to use charging standards based on chargers (for example, SAEJ1772 TM (SAE Electric Vehicle and Plug-in Hybrid Electric Vehicle Conductive Charging Coupler) The signal provided is directly connected to the control power supply. Instead, the EVSE can t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00G01R31/00
CPCH03K21/38Y02T10/7072Y04S30/14B60L53/665Y02T90/12Y02T90/167Y02T10/70H02J7/00Y02T90/14Y02T90/16
Inventor 李在远罗正焕郑泰焕
Owner HYUNDAI MOTOR CO LTD